Date   

Re: C-Drive vs Linecutter

Dean Gillies
 

Right, thanks Bill.
There was no washer, just the O Ring seal.
I’ll take it up with Amel.
Cheers
Dean


Re: C-Drive vs Linecutter

ngtnewington Newington
 

Hi Dean,



Slightly off topic, where are you hauled out in Scotland? Masts down? It will be pretty windy in that part of the world over the winter months.

Nick

On 4 Sep 2019, at 16:19, SY STELLA <stella@...> wrote:

Hi folks,
We are on the hard stand and I started the job of replacing the C-Drive lower seals since my C-Drive oil has gone a little like a chocolate milkshake.
When we came ashore, I noticed a trickle of oil down the keel which implied the lower seals were leaking oil.
 
This afternoon I removed the autoprop and the Spurs linecutter which I installed last year to get at the V-bolt in order to drain the oil.  After removing these it became clear that the source of the leakage is the V-bolt, and not the C-Drive shaft seals, which do not show any form of leakage.

The rubber O-seal on the V bolt appears to have perished and allowed water in and oil out of the C-Drive. I’m fairly sure the O-seal was provided by Amel when I ordered the V bolt last year. The V bolt itself was rather loose today, and I needed to rotate it an additional 35-45degrees clockwise in order to be fully tight.  In this position, the V-bolt does not align with the line-cutter, so that is a problem.

The solution would appear to be to fit a new seal under the V-bolt. However, it’s a concern that the previous O-seal perished in 6 months in the water.

Have others found this problem, and is there a better solution than simply replacing the seal?

I have a general philosophy of not fixing stuff that’s not broken, so I’m now considering leaving the shaft seals (lip seals) intact. The oil was perfect before I installed the line cutter in April, and close inspection shows no visible leakage from the shaft seals.

Thought ?

Dean
SY Stella
A54-154










<E1358E97-42C4-4B5E-AD2D-1BE660280E18.jpeg>


Re: C-Drive vs Linecutter

 

You may be missing the washer which should have been supplied by Amel. This washer and the O ring seal the V bolt. 

Best,

CW Bill Rouse
Amel Yacht Owners School - www.YachtSchool.us
720 Winnie St
Galveston Island, TX 77550
+1(832) 380-4970

On Wed, Sep 4, 2019, 10:20 AM SY STELLA <stella@...> wrote:
Hi folks,
We are on the hard stand and I started the job of replacing the C-Drive lower seals since my C-Drive oil has gone a little like a chocolate milkshake.
When we came ashore, I noticed a trickle of oil down the keel which implied the lower seals were leaking oil.
 
This afternoon I removed the autoprop and the Spurs linecutter which I installed last year to get at the V-bolt in order to drain the oil.  After removing these it became clear that the source of the leakage is the V-bolt, and not the C-Drive shaft seals, which do not show any form of leakage.

The rubber O-seal on the V bolt appears to have perished and allowed water in and oil out of the C-Drive. I’m fairly sure the O-seal was provided by Amel when I ordered the V bolt last year. The V bolt itself was rather loose today, and I needed to rotate it an additional 35-45degrees clockwise in order to be fully tight.  In this position, the V-bolt does not align with the line-cutter, so that is a problem.

The solution would appear to be to fit a new seal under the V-bolt. However, it’s a concern that the previous O-seal perished in 6 months in the water.

Have others found this problem, and is there a better solution than simply replacing the seal?

I have a general philosophy of not fixing stuff that’s not broken, so I’m now considering leaving the shaft seals (lip seals) intact. The oil was perfect before I installed the line cutter in April, and close inspection shows no visible leakage from the shaft seals.

Thought ?

Dean
SY Stella
A54-154











C-Drive vs Linecutter

Dean Gillies
 

Hi folks,
We are on the hard stand and I started the job of replacing the C-Drive lower seals since my C-Drive oil has gone a little like a chocolate milkshake.
When we came ashore, I noticed a trickle of oil down the keel which implied the lower seals were leaking oil.
 
This afternoon I removed the autoprop and the Spurs linecutter which I installed last year to get at the V-bolt in order to drain the oil.  After removing these it became clear that the source of the leakage is the V-bolt, and not the C-Drive shaft seals, which do not show any form of leakage.

The rubber O-seal on the V bolt appears to have perished and allowed water in and oil out of the C-Drive. I’m fairly sure the O-seal was provided by Amel when I ordered the V bolt last year. The V bolt itself was rather loose today, and I needed to rotate it an additional 35-45degrees clockwise in order to be fully tight.  In this position, the V-bolt does not align with the line-cutter, so that is a problem.

The solution would appear to be to fit a new seal under the V-bolt. However, it’s a concern that the previous O-seal perished in 6 months in the water.

Have others found this problem, and is there a better solution than simply replacing the seal?

I have a general philosophy of not fixing stuff that’s not broken, so I’m now considering leaving the shaft seals (lip seals) intact. The oil was perfect before I installed the line cutter in April, and close inspection shows no visible leakage from the shaft seals.

Thought ?

Dean
SY Stella
A54-154











Re: [Amel Yacht Owners] New size for Bow Thruster seal

Mark McGovern
 

Mike,

No problem.  JL Mertz's Speedi-Sleeve idea is a good one too as the surface finish on the shaft is really not good enough to ensure a good seal with the oil seal. 

Regarding the Annapolis Boat Show, we will definitely be at the show but we are not sure if we will taking Cara or just driving.  It's such a zoo around there at that time and we can't take the days off work to get there early enough to be ensured of a decent anchoring spot.  Definitely let me know what the plans are as they develop!

--
Mark McGovern
SM #440 Cara
Deale, MD USA


Re: [Amel Yacht Owners] New size for Bow Thruster seal

jlm@jlmertz.fr
 

Hi Ian,

If you speech of the Speedisleeve flag, NO

I reduce the seize of the shaft with sand paper to have the exactly same diameter of the inner size of the seals, and ad a lithe "epoxy (araldit)" , the flag protect the bearing ....

Bonne chance

JL MERTZ

CottonBay



Le 04/09/2019 à 13:56, ianjenkins1946 <ianjudyjenkins@...> a écrit :
Hi J....

 When you fitted the Speedisleeve did you remove the flange ?

 Ian and Judy, Pen Azen, SM 302 Greece

From: main@AmelYachtOwners.groups.io <main@AmelYachtOwners.groups.io> on behalf of jlm@... <jlm@...>
Sent: 03 September 2019 20:13
To: main@AmelYachtOwners.groups.io <main@AmelYachtOwners.groups.io>
Subject: Re: [AmelYachtOwners] [Amel Yacht Owners] New size for Bow Thruster seal
 
Hello Mark,


I used 10 years ago SKF Speedi-Sleeve, I posted photos ... it is wonderful .... never change it ! ....I can recommand you this

JL Mertz

CottonBay



Le 03/09/2019 à 21:30, Mike Ondra via Groups.Io a écrit :

Mark, indeed there were some scratches on the plastic shaft. Will gently sand them out, measure, and go with the 29mm seal.

Thanks for the insight!

Seems like a Amel mini-rendezvous may be happening at the Annapolis Boat Show. Might you be coming up? We plan on being there Thursday and Friday. Would be great to meet.

Mike Ondra

Aletes SM#240

Rock Hall, MD

 

From: main@AmelYachtOwners.groups.io <main@AmelYachtOwners.groups.io> On Behalf Of Mark McGovern
Sent: Sunday, September 1, 2019 4:26 PM
To: main@AmelYachtOwners.groups.io
Subject: Re: [AmelYachtOwners] [Amel Yacht Owners] New size for Bow Thruster seal

 

Mike,

I did my first bowthruster service this past winter and used a 29x42x8 seal.  It was a tight fit but it works.  The seal I replaced was also a 29mm ID seal.  There was no oil leaking from the seal while the boat was sitting on the hard after the service and the oil is still clear - not the "cafe creme" looking mixture of oil and water.  However, when I disassembled the unit to replace the bearings (preventatively) I could feel a small groove in the shaft where the previous seal sat.  The shaft was also discolored with a brown-ish stain at that point:



I consulted with Olivier Beaute and he told me that if I felt any kind of groove that I should try to gently sand it out with 600 grit sandpaper and water.  He also said that if I could NOT feel anything that I should NOT sand it but just clean it as sanding the shaft comes with it's own risks.  I measured the shaft OD at the point in the shaft where the oil seal sits with calipers and found that it was about 29.5mm so there was plenty of "meat" on the shaft for a 29mm ID oil seal so I wet-sanded the shaft smooth, re-assembled everything and so far, so good.  However, a 30mm ID seal would have likely resulting in a static oil leak like you have and certainly would have allowed water to enter the bowthruster during use  Consider taking the entire bowthruster shaft apart, measure the shaft OD and inspect it for any damage where the oil seal sits.  Also check the OD for any damage as well. 

-- 
Mark McGoverntly 
SM #440 Cara
Deale, MD USA


Garanti sans virus. www.avast.com


Re: Converting my Amel 54 to lithium batteries: what I did, what I like and what I don't like (after one year of full time live aboard use)

svperegrinus@yahoo.com
 

With regard to the brown wire and a Mastervolt Alpha Pro regulator: the On/Off control of the regulator _is_ the brown wire.  In fact, if the brown wire is not interrupted at installation time via an interface to your engine's ignition key or to an oil pressure switch, then the regulator will always be on 24x7 and it will either burn up the alternator windings or discharge the batteries, whichever happens first.  Therefore I agree that yes, it is up to Victron to provide the signal necessary for you to install the relay that will interrupt the brown wire and turn off the regulator.  Hopefully the Schneider switch Victron proposes will address your issue.

Non-automated options for switching off the Alpha Pro regulator, short of manually pulling off the brown wire, include:

1.  Install an in-line manual switch

2.  Set up a "Alternator Off" / "Alternator On" virtual switch buttons on a Mastervolt EasyView screen.  This is what I have done.  I've never had occasion to need to use these buttons in anger, as the regulator has proven to be 100% reliable with regards to voltages, floats, temperatures, etc., but it is important to have this emergency kill available, just in case.

3.  Connect via USB to the Mastervolt MasterBus.  On the MasterAdjust software, select the option to "Configure" the regulator.  This will turn off the regulator and it will remain off until the configuration is again locked down.


Re: [Amel Yacht Owners] New size for Bow Thruster seal

ianjenkins1946 <ianjudyjenkins@hotmail.com>
 

Hi J....

 When you fitted the Speedisleeve did you remove the flange ?

 Ian and Judy, Pen Azen, SM 302 Greece


From: main@AmelYachtOwners.groups.io <main@AmelYachtOwners.groups.io> on behalf of jlm@... <jlm@...>
Sent: 03 September 2019 20:13
To: main@AmelYachtOwners.groups.io <main@AmelYachtOwners.groups.io>
Subject: Re: [AmelYachtOwners] [Amel Yacht Owners] New size for Bow Thruster seal
 
Hello Mark,


I used 10 years ago SKF Speedi-Sleeve, I posted photos ... it is wonderful .... never change it ! ....I can recommand you this

JL Mertz

CottonBay



Le 03/09/2019 à 21:30, Mike Ondra via Groups.Io a écrit :

Mark, indeed there were some scratches on the plastic shaft. Will gently sand them out, measure, and go with the 29mm seal.

Thanks for the insight!

Seems like a Amel mini-rendezvous may be happening at the Annapolis Boat Show. Might you be coming up? We plan on being there Thursday and Friday. Would be great to meet.

Mike Ondra

Aletes SM#240

Rock Hall, MD

 

From: main@AmelYachtOwners.groups.io <main@AmelYachtOwners.groups.io> On Behalf Of Mark McGovern
Sent: Sunday, September 1, 2019 4:26 PM
To: main@AmelYachtOwners.groups.io
Subject: Re: [AmelYachtOwners] [Amel Yacht Owners] New size for Bow Thruster seal

 

Mike,

I did my first bowthruster service this past winter and used a 29x42x8 seal.  It was a tight fit but it works.  The seal I replaced was also a 29mm ID seal.  There was no oil leaking from the seal while the boat was sitting on the hard after the service and the oil is still clear - not the "cafe creme" looking mixture of oil and water.  However, when I disassembled the unit to replace the bearings (preventatively) I could feel a small groove in the shaft where the previous seal sat.  The shaft was also discolored with a brown-ish stain at that point:



I consulted with Olivier Beaute and he told me that if I felt any kind of groove that I should try to gently sand it out with 600 grit sandpaper and water.  He also said that if I could NOT feel anything that I should NOT sand it but just clean it as sanding the shaft comes with it's own risks.  I measured the shaft OD at the point in the shaft where the oil seal sits with calipers and found that it was about 29.5mm so there was plenty of "meat" on the shaft for a 29mm ID oil seal so I wet-sanded the shaft smooth, re-assembled everything and so far, so good.  However, a 30mm ID seal would have likely resulting in a static oil leak like you have and certainly would have allowed water to enter the bowthruster during use  Consider taking the entire bowthruster shaft apart, measure the shaft OD and inspect it for any damage where the oil seal sits.  Also check the OD for any damage as well. 

-- 
Mark McGoverntly 
SM #440 Cara
Deale, MD USA


Garanti sans virus. www.avast.com


Re: Converting my Amel 54 to lithium batteries: what I did, what I like and what I don't like (after one year of full time live aboard use)

Paul Brown
 

Hi Scott 

Thank you again for sharing all this information and it certainly helps my awareness and thoughts moving forward 

As you know the previous owner of my A55 upgraded the system to almost a complete MasterVolt lithium, charging, inverter and monitoring system in 2015, which works extremely well and reliability to date, it has been certainly a life changing experience aboard as I too enjoy anchoring for extended periods and living off the grid with minimal use of the generator. 

We have away to go by increasing solar from 550w/24v to hopefully 1100w/24v which I figure would allow total off the grid solar generation continuous without generator along with upgrading all appliances to a suitable inverter - this is my grey area as to what development I really need to accomplish this 

I have a question please, how do you manage maintaining an equal balance of all your batteries in the bank if only running the bank between 40-80% SOC. Mastervolt has advised me that I should charge the bank to 100% at least every fortnight to balance the batteries otherwise it is likely to damage them. This is an area that needs clarification in respect to manage the SOC to optimise long term life of the system. 

Currently I need to run the generator on average 4-5 hours per week when at anchor, at that time I can make water, run the washer, use the air-con’s and of course charge to 100%.. it would be wonderful not ever running the generator and everything from batteries,, but how can this be achieved???

I look forward to following this thread as if lithium maybe the ideal system it does need some questions answered to establish an ideal system, considering it would be the most costly system but certainly could be a great investment.

I wish there was a blue print off the shelf 

Kind regards Paul - Fortuna II A55#17


On 4 Sep 2019, at 8:16 am, Joerg Esdorn via Groups.Io <jhe1313@...> wrote:

Thanks very much, Scott.  Excellent write-up.  I have a few questions and comments.

1.  The A55 comes with a switch that in the "on" position, turns on the generator automatically if the SOC goes below 60%.  Amel cautions owners, however, that it may not be a good idea to have this switch on since the generator will then run for 2 hours and all kinds of things can happen if you happen to be not on the boat while this is happening.  I've never had it "on" but I've certainly had the "low water" alarm come on because there was some issue with the saltwater intake.    If I had not been on the boat, I might have destroyed my generator. 
2.  Does your 5KW charger get hot when it is charging the batteries?  Where is it installed - in the engine room?  I'm asking because I was on another boat with Lithium batteries and they had very powerful cooling fans for the chargers even though charging was limited to 20% of battery capacity.  The fans were very noisy which for me, sleeping in the cabin next to the chargers, was a problem.  This was in late 2017, the system was designed by Mastervolt engineers and the boat was new then.  Do you have a limit on the charging current?
3.  On the A55, I cannot use my 2.5KW inverter for high current things like the water heater, AC, water maker.  This is done by Amel to protect  the gel batteries, I'm sure, through the wiring of the 230V switchboard.  I was surprised that you didn't mention this in your writeup - presumably the A54 has the same setup for the original switchboard but you are getting around this issue by not wiring your 5KW combi through the old switchboard?  I'm wondering how easy it would be to change the wiring on the switchboard and just add another inverter (in parallel) rather than starting from scratch.  
4.  When you leave your boat for extended periods, can't you just leave the batteries without charger?  If you start them at 100%, it should take many months before they're down to 25%, right?  

Scott, again many thanks for this.  My gel batteries may have another year in them or may not.  It's great to have someone as competent as you doing the major lifting on the choice of battery I will need to make soon! 

Joerg Esdorn
A55 #53
Kincsem, currently anchored by Gibraltar


Re: Converting my Amel 54 to lithium batteries: what I did, what I like and what I don't like (after one year of full time live aboard use)

Joerg Esdorn
 

Thanks very much, Scott.  Excellent write-up.  I have a few questions and comments.

1.  The A55 comes with a switch that in the "on" position, turns on the generator automatically if the SOC goes below 60%.  Amel cautions owners, however, that it may not be a good idea to have this switch on since the generator will then run for 2 hours and all kinds of things can happen if you happen to be not on the boat while this is happening.  I've never had it "on" but I've certainly had the "low water" alarm come on because there was some issue with the saltwater intake.    If I had not been on the boat, I might have destroyed my generator. 
2.  Does your 5KW charger get hot when it is charging the batteries?  Where is it installed - in the engine room?  I'm asking because I was on another boat with Lithium batteries and they had very powerful cooling fans for the chargers even though charging was limited to 20% of battery capacity.  The fans were very noisy which for me, sleeping in the cabin next to the chargers, was a problem.  This was in late 2017, the system was designed by Mastervolt engineers and the boat was new then.  Do you have a limit on the charging current?
3.  On the A55, I cannot use my 2.5KW inverter for high current things like the water heater, AC, water maker.  This is done by Amel to protect  the gel batteries, I'm sure, through the wiring of the 230V switchboard.  I was surprised that you didn't mention this in your writeup - presumably the A54 has the same setup for the original switchboard but you are getting around this issue by not wiring your 5KW combi through the old switchboard?  I'm wondering how easy it would be to change the wiring on the switchboard and just add another inverter (in parallel) rather than starting from scratch.  
4.  When you leave your boat for extended periods, can't you just leave the batteries without charger?  If you start them at 100%, it should take many months before they're down to 25%, right?  

Scott, again many thanks for this.  My gel batteries may have another year in them or may not.  It's great to have someone as competent as you doing the major lifting on the choice of battery I will need to make soon! 

Joerg Esdorn
A55 #53
Kincsem, currently anchored by Gibraltar


Re: Amel Super Maramu Battery Compartment dimensions

Alexandre Uster von Baar
 


My pleasure James!

It always makes me very happy knowing my site is being used.

I hope it is all clear on the illustration.
From memory the perpendicular plank of the battery compartment cover is not uniform. One side is taller. .

Sincerely, Alexandre

On Tuesday, September 3, 2019, 6:16:15 PM CDT, James Cromie via Groups.Io <jamescromie@...> wrote:


Thank you Alex.  Actually, my battery compartment accommodates only 8+1.  
I should have thought to check your comprehensive website before posting!  I’ve accessed your web pages many times as I have updated my own boat. 

Many thanks to you for all of the work you have devoted to documenting the features and work you’ve done on your boat.  

Best,
James
On Sep 3, 2019, at 7:09 PM, Alexandre Uster von Baar via Groups.Io <uster@...> wrote:

Hello James,

Here are the dimension for the 8 + 1 battery configuration.
http://www.nikimat.com/battery_compartment_space.html

But I suspect your hull number has the 12 + 1 batteries.

Sincerely, Alexandre
On Tuesday, September 3, 2019, 4:04:31 PM CDT, James Cromie via Groups.Io <jamescromie@...> wrote:


To Amel Super Maramu owners: 
I am looking to replace my house batteries, and would like to ask if anyone can share with me the dimensions of the battery compartment, as I am not on our boat presently
I have Hull # 347. 

More specifically, has anyone used the Trojan T1275 flooded lead acid battery?   Dimensions of the battery are L 329mm x H 283mm x W 181mm.

Many Thanks,

James Cromie
Soteria SM2K
#347
Aruba


Re: Amel Super Maramu Battery Compartment dimensions

James Cromie
 

Thank you Alex.  Actually, my battery compartment accommodates only 8+1.  
I should have thought to check your comprehensive website before posting!  I’ve accessed your web pages many times as I have updated my own boat. 

Many thanks to you for all of the work you have devoted to documenting the features and work you’ve done on your boat.  

Best,
James

On Sep 3, 2019, at 7:09 PM, Alexandre Uster von Baar via Groups.Io <uster@...> wrote:

Hello James,

Here are the dimension for the 8 + 1 battery configuration.
http://www.nikimat.com/battery_compartment_space.html

But I suspect your hull number has the 12 + 1 batteries.

Sincerely, Alexandre
On Tuesday, September 3, 2019, 4:04:31 PM CDT, James Cromie via Groups.Io <jamescromie@...> wrote:


To Amel Super Maramu owners: 
I am looking to replace my house batteries, and would like to ask if anyone can share with me the dimensions of the battery compartment, as I am not on our boat presently
I have Hull # 347. 

More specifically, has anyone used the Trojan T1275 flooded lead acid battery?   Dimensions of the battery are L 329mm x H 283mm x W 181mm.

Many Thanks,

James Cromie
Soteria SM2K
#347
Aruba


Re: Amel Super Maramu Battery Compartment dimensions

Alexandre Uster von Baar
 

Hello James,

Here are the dimension for the 8 + 1 battery configuration.
http://www.nikimat.com/battery_compartment_space.html

But I suspect your hull number has the 12 + 1 batteries.

Sincerely, Alexandre

On Tuesday, September 3, 2019, 4:04:31 PM CDT, James Cromie via Groups.Io <jamescromie@...> wrote:


To Amel Super Maramu owners: 
I am looking to replace my house batteries, and would like to ask if anyone can share with me the dimensions of the battery compartment, as I am not on our boat presently
I have Hull # 347. 

More specifically, has anyone used the Trojan T1275 flooded lead acid battery?   Dimensions of the battery are L 329mm x H 283mm x W 181mm.

Many Thanks,

James Cromie
Soteria SM2K
#347
Aruba


Amel Super Maramu Battery Compartment dimensions

James Cromie
 

To Amel Super Maramu owners: 
I am looking to replace my house batteries, and would like to ask if anyone can share with me the dimensions of the battery compartment, as I am not on our boat presently
I have Hull # 347. 

More specifically, has anyone used the Trojan T1275 flooded lead acid battery?   Dimensions of the battery are L 329mm x H 283mm x W 181mm.

Many Thanks,

James Cromie
Soteria SM2K
#347
Aruba


Re: [Amel Yacht Owners] New size for Bow Thruster seal

jlm@jlmertz.fr
 

Hello Mark,


I used 10 years ago SKF Speedi-Sleeve, I posted photos ... it is wonderful .... never change it ! ....I can recommand you this

JL Mertz

CottonBay



Le 03/09/2019 à 21:30, Mike Ondra via Groups.Io a écrit :

Mark, indeed there were some scratches on the plastic shaft. Will gently sand them out, measure, and go with the 29mm seal.

Thanks for the insight!

Seems like a Amel mini-rendezvous may be happening at the Annapolis Boat Show. Might you be coming up? We plan on being there Thursday and Friday. Would be great to meet.

Mike Ondra

Aletes SM#240

Rock Hall, MD

 

From: main@AmelYachtOwners.groups.io <main@AmelYachtOwners.groups.io> On Behalf Of Mark McGovern
Sent: Sunday, September 1, 2019 4:26 PM
To: main@AmelYachtOwners.groups.io
Subject: Re: [AmelYachtOwners] [Amel Yacht Owners] New size for Bow Thruster seal

 

Mike,

I did my first bowthruster service this past winter and used a 29x42x8 seal.  It was a tight fit but it works.  The seal I replaced was also a 29mm ID seal.  There was no oil leaking from the seal while the boat was sitting on the hard after the service and the oil is still clear - not the "cafe creme" looking mixture of oil and water.  However, when I disassembled the unit to replace the bearings (preventatively) I could feel a small groove in the shaft where the previous seal sat.  The shaft was also discolored with a brown-ish stain at that point:



I consulted with Olivier Beaute and he told me that if I felt any kind of groove that I should try to gently sand it out with 600 grit sandpaper and water.  He also said that if I could NOT feel anything that I should NOT sand it but just clean it as sanding the shaft comes with it's own risks.  I measured the shaft OD at the point in the shaft where the oil seal sits with calipers and found that it was about 29.5mm so there was plenty of "meat" on the shaft for a 29mm ID oil seal so I wet-sanded the shaft smooth, re-assembled everything and so far, so good.  However, a 30mm ID seal would have likely resulting in a static oil leak like you have and certainly would have allowed water to enter the bowthruster during use  Consider taking the entire bowthruster shaft apart, measure the shaft OD and inspect it for any damage where the oil seal sits.  Also check the OD for any damage as well. 

-- 
Mark McGoverntly 
SM #440 Cara
Deale, MD USA


Garanti sans virus. www.avast.com


Re: [Amel Yacht Owners] New size for Bow Thruster seal

Mike Ondra
 

Mark, indeed there were some scratches on the plastic shaft. Will gently sand them out, measure, and go with the 29mm seal.

Thanks for the insight!

Seems like a Amel mini-rendezvous may be happening at the Annapolis Boat Show. Might you be coming up? We plan on being there Thursday and Friday. Would be great to meet.

Mike Ondra

Aletes SM#240

Rock Hall, MD

 

From: main@AmelYachtOwners.groups.io <main@AmelYachtOwners.groups.io> On Behalf Of Mark McGovern
Sent: Sunday, September 1, 2019 4:26 PM
To: main@AmelYachtOwners.groups.io
Subject: Re: [AmelYachtOwners] [Amel Yacht Owners] New size for Bow Thruster seal

 

Mike,

I did my first bowthruster service this past winter and used a 29x42x8 seal.  It was a tight fit but it works.  The seal I replaced was also a 29mm ID seal.  There was no oil leaking from the seal while the boat was sitting on the hard after the service and the oil is still clear - not the "cafe creme" looking mixture of oil and water.  However, when I disassembled the unit to replace the bearings (preventatively) I could feel a small groove in the shaft where the previous seal sat.  The shaft was also discolored with a brown-ish stain at that point:



I consulted with Olivier Beaute and he told me that if I felt any kind of groove that I should try to gently sand it out with 600 grit sandpaper and water.  He also said that if I could NOT feel anything that I should NOT sand it but just clean it as sanding the shaft comes with it's own risks.  I measured the shaft OD at the point in the shaft where the oil seal sits with calipers and found that it was about 29.5mm so there was plenty of "meat" on the shaft for a 29mm ID oil seal so I wet-sanded the shaft smooth, re-assembled everything and so far, so good.  However, a 30mm ID seal would have likely resulting in a static oil leak like you have and certainly would have allowed water to enter the bowthruster during use  Consider taking the entire bowthruster shaft apart, measure the shaft OD and inspect it for any damage where the oil seal sits.  Also check the OD for any damage as well. 

-- 
Mark McGoverntly 
SM #440 Cara
Deale, MD USA


Re: Converting my Amel 54 to lithium batteries: what I did, what I like and what I don't like (after one year of full time live aboard use)

Brent Cameron
 

Fantastic write up Scott.  I kept writing down questions and then erasing them as I read further and you answered them.  I’d love to see a schematic at one point but I think most of it is pretty self-evident from your description.  I do have a few questions:

  1. Are your 450A fuses wired into each of the 2x12V battery pairs before you gang them together in parallel - i.e., if one fuse blows, it takes down two of your Lithium 12V batteries leaving two more 2x12V pairs to continue to provide the load at 24V?
  2. Not to be pedantic but I suspect that you mean that the pig tails connected to your VE.BUS BMS and your batteries are daisy chained rather than serial connections?  I gather that the Victron batteries send digital information to the VE.BUS BMS so the information isn’t aggregated by putting them in serial configuration as would happen if they were using an analog signal - such as voltage?  So in your system, battery 1 connects to battery 2… connects to battery 6 which connects to the BMS?  I was never sure how these BMS systems connected to the batteries and control them when the batteries  are serially and then parallel connected as in your configuration.  If the system senses an issue with say battery 3 in your system, I would expect that the BMS should somehow signal battery 3 to shut down - but then what happens to battery 4 (the other battery in the series configuration to make 24V) - does it sense getting back fed by the other two banks of batteries and shut down itself? (Late addition - Now I see that you are using the BP-220 to shut down the battery - but it seems to me it would take down the entire system if one battery failed.. no?). This leads me to the next point….
  3. With respect to your question about the solenoid… Can the VE.BUS BMS be configured to talk to three BP-220’s, each protecting one 2x12V pair of batteries?  I.e. you would have your battery fuses inline with the BP-220’s and then bring them together in parallel. This might also address my question on how the BMS system commands the shut down… I gather the batteries themselves do not shut down but rather you need a system like the BP-220 to shut them down when commanded to by the VE.BUS BMS?  If I’m right, this would simply drop a 24V battery pair in the event of a bad cell and not the entire bank - presumably, you’d also want it to trigger some sort of alarm to let you know you’d just lost 33% of your capacity.
  4. Did you consider the LFP-Smart 25.6V/200A batteries and if so, why did you discard them: 
    1. Cost; 
    2. Size (they seem to be 33% higher, 37% deeper and only 2% more narrow so I guess you may have had an issue fitting them into the existing battery compartment?);
    3. Didn’t need the extra power 33% power, or;
    4. Other
  5. I guess it isn’t that much work to wire up two 12V to get 24V - especially as that is the way the boat originally came anyway but I was thinking it might have simplified the situation where you have to shut down a bank of batteries because of a bad cell.
  6. With respect to your idea about automagically starting and stopping your 11KW Onan to keep the bank between 30-75% in the absence of solar, you might think of adding a normally open switch triggered by closing the engine room hatch as a safety feature in your autostart circuit so the genset didn’t fire up automagically when you were working on or around it. (The switch would be open when the hatch is open preventing your Onan from starting while you were down there working on/or around it).
Again, this is a fantastic write up Scott.  I think you will do much to advance the cause (along with the work Bill is doing to help get reduced prices) of bringing these magnificent sailing machines into a much more energy independent paradigm. 


Brent Cameron, Future Amel Owner and Amel Owner’s Registry Moderator

On Sep 3, 2019, 1:23 PM -0400, ngtnewington Newington via Groups.Io <ngtnewington@...>, wrote:
Hi Scott,

Very interesting to read about your project. You have obviously enjoyed the whole process and the challenge.
Would it be impertinent to ask how much it all cost? 
I will stick with my AGM’s until they eventually die, they are two and a bit years old, but when the time comes Lithium is certainly an option...

Kind regards

Nick
S/Y Amelia
Kefalonia
AML 54-019


On 3 Sep 2019, at 16:04, Andrew & Kate Lamb <andrew.lamb@...> wrote:

An excellent write up Scott and very useful.

 

We  have had a Victron Quattro 5000/120 since 2013 and have been very pleased with this. It is clear that lithium is the next step.

 

Andrew

Ronpische

Sm472

 

From: main@AmelYachtOwners.groups.io <main@AmelYachtOwners.groups.io> On Behalf Of Scott SV Tengah
Sent: Tuesday, September 3, 2019 4:35 PM
To: main@AmelYachtOwners.groups.io
Subject: Re: [AmelYachtOwners] Converting my Amel 54 to lithium batteries: what I did, what I like and what I don't like (after one year of full time live aboard use)

 

Rob,

Does the Victron Isolation Transformer take 60hz input and output 50hz? 
--
Scott 
2007 A54 #69
SV Tengah
http://www.svtengah.com


--
Brent Cameron

Future Amel Owner & Amel Owner Registry Moderator

Oro-Medonte, Ontario, Canada


Re: Converting my Amel 54 to lithium batteries: what I did, what I like and what I don't like (after one year of full time live aboard use)

ngtnewington Newington
 

Hi Scott,

Very interesting to read about your project. You have obviously enjoyed the whole process and the challenge.
Would it be impertinent to ask how much it all cost? 
I will stick with my AGM’s until they eventually die, they are two and a bit years old, but when the time comes Lithium is certainly an option...

Kind regards

Nick
S/Y Amelia
Kefalonia
AML 54-019


On 3 Sep 2019, at 16:04, Andrew & Kate Lamb <andrew.lamb@...> wrote:

An excellent write up Scott and very useful.

 

We  have had a Victron Quattro 5000/120 since 2013 and have been very pleased with this. It is clear that lithium is the next step.

 

Andrew

Ronpische

Sm472

 

From: main@AmelYachtOwners.groups.io <main@AmelYachtOwners.groups.io> On Behalf Of Scott SV Tengah
Sent: Tuesday, September 3, 2019 4:35 PM
To: main@AmelYachtOwners.groups.io
Subject: Re: [AmelYachtOwners] Converting my Amel 54 to lithium batteries: what I did, what I like and what I don't like (after one year of full time live aboard use)

 

Rob,

Does the Victron Isolation Transformer take 60hz input and output 50hz? 
--
Scott 
2007 A54 #69
SV Tengah
http://www.svtengah.com


Re: Converting my Amel 54 to lithium batteries: what I did, what I like and what I don't like (after one year of full time live aboard use)

Andrew & Kate Lamb
 

An excellent write up Scott and very useful.

 

We  have had a Victron Quattro 5000/120 since 2013 and have been very pleased with this. It is clear that lithium is the next step.

 

Andrew

Ronpische

Sm472

 

From: main@AmelYachtOwners.groups.io <main@AmelYachtOwners.groups.io> On Behalf Of Scott SV Tengah
Sent: Tuesday, September 3, 2019 4:35 PM
To: main@AmelYachtOwners.groups.io
Subject: Re: [AmelYachtOwners] Converting my Amel 54 to lithium batteries: what I did, what I like and what I don't like (after one year of full time live aboard use)

 

Rob,

Does the Victron Isolation Transformer take 60hz input and output 50hz? 
--
Scott 
2007 A54 #69
SV Tengah
http://www.svtengah.com


Re: Converting my Amel 54 to lithium batteries: what I did, what I like and what I don't like (after one year of full time live aboard use)

Scott SV Tengah
 

Rob,

Does the Victron Isolation Transformer take 60hz input and output 50hz? 
--
Scott 
2007 A54 #69
SV Tengah
http://www.svtengah.com